easy differences to understand the difference between tints and filters.

1. Presented by;
MUHAMMAD RIZWAN
BILAL CHOHAN
ASAD IQBAL

2. Allowanceofusefullight:
Filters:
• Filters “filter out” the disturbing
light and while at the same time
allow useful light to enter the
eye.
Tints:
• Tints does not discriminate
between light waves that cause
disturbance and the useful light
waves that helps to see.

3. Effectonvision:
Filters:
• Filters does not reduce vision as
they allow useful light to enter in
the eye.
Tints:
• Tints are effective in reducing
glare but they tend to reduce
vision at the same time.

4. Visiblelighttransmissionfactor:
Filters:
• There is no concept of VLT in
filters.
Tints:
• A very dark tint may allow only
2% of visible light to transmit,
whereas light tint may allow 50%
or 60% of visible light to transmit
hence enhancing vision.

5. Fordiagnosticpurpose:
Filters:
• Cobalt blue: enhance view of
fluorescein in the tear film of eye.
• Neutral density filter:reduce the
visibility of moving objects.
• Red free: used to enhance the view
blood vessels and hemorrhages.
• Green and red filters: used for color
vision and to asses diplopia and
suppression, in Hess chart.
Tints:
• Tints aren’t used for diagnostic
purpose.

6. Fortherapeuticpurpose:
Filters:
• Glare avoidance: in patients with
cataract, ocular albinism, RP, post
chamber IOL, vitreous opacities,
macular edema etc.
• Contrast enhancement: in patients
having AMD, RP, cataract, DR,
albinism, cone dystrophy.
• Control for light sensitivity: in patients
with corneal abrasions, uveitis,
detached retina, and refractive
surgery.
Tints:
• In patients of cataract and albinism
to reduce glare.
• Tints does not enhance contrast.
• Tints are given in cataract,
postoperatively in cataract and
refractive surgery.

7. Filters: Tints:
For cosmetic purpose:
• Filters aren’t used for cosmetic
purpose.
• Tints are used cosmetically.
Available in plastic or glass:
• Filters are only available in plastic. • Tints are available in both plastic and glass.
Weight:
• Filters are light weight. • Tints are heavy weight if are available in glass material.

8. Accordingtocolor:
Filters: Tints:
Black: They aren’t black. In sunglasses and in car windows.
Yellow: For enhancing contrast in
glaucoma, RP, in LVA patients, in
red/green anomaly.
Cosmetically, RP, AMD.
Yellow orange(amber): In developing cataracts, glaucoma,
aphakia, pseudophakia, macular
degeneration, and retinal diseases.
Isn’t used in tints.
Pink and blue: Isn’t beneficial in filters. Aphakia, indoor and computer
workers.
Brown and gray: Isn’t used in filters. For photophobia, better contrast
and in hazy conditions(albinism, in
sunglasses).

9. Indifferentoccupations:
Filters: Tints:
Red:
Used for emergencies. Used for caution, traffic signal and hunting.
Great for penetrating in fog or smoke.
Green:
Used for hunting and hiking.
Mostly for welders(absorb IR and UV).
Also very popular for night time map
reading on operations and traffic signal
Blue:
Used for night fishing and in tracking games. Used in spotlights.